Flourvallan has previously been partially banned and the decision on a total ban by both the IBU and the International Ski Federation, Fis, has been preceded by several different announcements.

In order to be able to adopt a total ban in practice, the search for a completely reliable test method has been at the center.

Now the unions think they have found the right one.

The Alpha II test device has been tested during the season and the development of the test routines has gone according to plan, according to Olle Dahlin.

- We will go from random checks in the walla booths to a total fluoride ban where we will test all skis.

The measurement method is chemically established and very safe in itself, it is more the practical challenge that has been a journey for us.

You should be able to be out and it should go fast enough and all that.

The slip-friendly fluorine wall has long been controversial as it is environmentally hazardous.

The EU bans the production, sale and use of some, but not all, products.

- The EU has gone out and banned a type of fluoride products at the moment, but we still see that around the corner work is being done on there being a formal ban on several products and here we want to be ahead, says Dahlin.

How safe do you feel with the test method?

- There is no doubt there.

We feel very safe and I myself have great insight into it.

The measurement method is chemically established, then it is, as I said, the practicality that we solved during the journey.